What is the custom of the At-mun-shi when a child is born with a defect? What belief causes them to do this? What did the chief do to protect his daughter from this code?

When a child is born with a deformity, he/she is drowned.

She leaned against him, hoping to hide the deformed leg that-but for her father's love-- would have caused her to have been drowned as an infant.

The imperfect were used as sacrifices for the God of Life in order to insure their protection.

Only the sacrifice of the imperfect to the God of Life could assure protection for the perfect.

Rather than sacrifice his daughter, the chief sacrificed his favorite dog.... the God of life accepted his sacrifice.

But the chief had gone against his tribal code and sacrificed his favorite dog to keep his infant daughter and thus far the God of Life had wreaked no vengeance on him.